4.1 Article

Ionic liquid promoted synthesis of 3-(2′-benzothiazolo)-2,3-dihydroquinazolin-4(1H)-ones

Journal

COMPTES RENDUS CHIMIE
Volume 11, Issue 6-7, Pages 759-764

Publisher

ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crci.2007.11.007

Keywords

2-aminobenzothiazole; multi-component reaction; isatoic anhydride; ionic liquid; catalyst-free; 2,3-dihydroquinazolin-4(1H)-ones

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3-(2'-Benzothiazolo)-2,3-dihydroquinazolin-4(1H)-ones have been synthesized in high yields in the presence of 1-butyl-3-methylimidazolium bromide [bmim]Br as an ionic liquid; the reaction work-up is simple and the ionic liquid can be easily separated from the product and reused.

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